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Información tecnológica

versión On-line ISSN 0718-0764

Resumen

MOREIRA, Albina S; DUARTE, Márcia M. L; NANDENHA, Júlio  y  MACEDO, Gorete R. Study of the Removal Mechanism of Iron and Copper from Used Lubricant Oils trough Bioadsorption. Inf. tecnol. [online]. 2008, vol.19, n.1, pp.57-68. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642008000100008.

In this study biomass of the marine alga Sargassum sp was used to study the influence of agitation velocity, temperature and initial biomass concentration on the removal of iron and copper from used lubricant oils. An experimental design and a kinetic study were done. The experiments were carried out using samples of used lubricant oils and predetermined amounts of algae allowing sufficient time for the mixture to reach equilibrium conditions. The results showed that, under the conditions studied, the larger the amount of biomass present, the lower the adsorption capacity of iron and copper, probably due to a decrease in interfacial contact area. The study shows that it is possible to obtain a function that represents the influence of each of the variables that shows the degree of influence of each of the system variables.

Palabras clave : used lubricating oil; bioadsorption; sargassum sp.; metal removal.

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